Abstract: Objective]The experiment was carried out to study effects of different phosphate application on accumulation and partitioning of dry matter and the yield of spring wheat and identify the optimum phos-phate application.[Method]The experiment was designed as a split plot arrangement,the cultivars in the main plot were Xinchun 26 and Xinchun 34,and in the sub plot was phosphate application with 5 phosphate (P0:0 kg/hm2、P1:45 kg/hm2,P2:90 kg/hm2,P3:135 kg/hm2,P4:180 kg/hm2).[Result]The phosphate application had a significant influence on the accumulation and partitioning of dry matter and dry matter contri-bution rate to grain after anthesis and transfer rate to grain before anthesis and yield components of spring wheat,there was a significant influence with dry matter in anthesis and maturity and dry matter contribution rate to grain after anthesis and transfer rate to grain from stem and glumes and amount of dry matter and yield and spike size for the spring wheat cultivars.With the increase of phosphate application,the total amount of dry matter in spring wheat firstly increased quickly and then decreased slowly.Increasing phosphate fertilizer rates increased the grains per spike and 1 ,000 -grain weight and grain yield up to a point.Over a certain rang,there was no additional response.The rate of phosphate had a positive correlation with the total amount of dry matte and grain yield,the correlation coefficient was 0.920 and 0.969.The grain yield had a positive correlation with the total amount of dry matter,the correlation coefficient was 0.941 .The sequence of dry mat-ter partitioning in various organs in spring wheat at maturity stage was:grain yield >stem >spike >leaf >sheath.[Conclusion]In a certain range (0 -135 kg/hm2),the application of P fertilizer could increase the yield of spring wheat and the photosynthetic capacity at later stage,so as to increase the yield of spring wheat, and the optimum amount was 135 kg/hm2.